the onions in julienne and brown in a casserole together with the garlic cloves and some olive oil. Add the white wine. When poached, add the tomato sauce. Boil during 5 minutes. Add the single cream. Grind, strain and set apart.
Cut the lobster in two halves, cover with the sauce, add the parmesan cheese and bake for 30 minutes at 180 °C. Seal the fish and the prawns in a griddle and add them in the casserole at the end of the cooking process so as they are cooked to perfection.